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The Spiral is a bobsleigh, luge, and skeleton track located in Iizuna village, located north of Nagano, Japan. Used for the bobsleigh and luge competitions for the 1998 Winter Olympics, it is the first permanent bobsleigh, luge, and skeleton track in Asia and the first of its type in the world with two or more uphill sections. It is officially referred to as the Nagano Bobsleigh-Luge Park in Japan.